①49+16=
②88-32=
③70-23=
④162-24+35=
⑤91-(42-17)=
80-57= 9×4= 42-(18+20)= 8×7-7=
7×8= 68+9= 6×9+8= 81-70=
9×3= 40+30= 35-25= 3×6+20=
①28+34=
②44+23=
③65-27=
④95-49-36=
⑤67-25+28=
⑥75-(27+16)=
①35+65=
②90-56=
③80-(27+48)=
④49+31-52=
⑤53-(87-58)=
⑥99-63+34=
①54-45=
②37+24=
③57-36=
④28+25-35 =
⑤81-(24-18)=
⑥96-33+17=